Business and manufacturing--Pennsylvania--Philadelphia--20th century 1 Chamber of Commerce--Philadelphia 1 Charities--Pennsylvania--Philadelphia 1 College trustees--United States 1 Commerce--19th Century 1 Commerce--Philadelphia--19th century 1 Department stores--Pennsylvania--Philadelphia 1 more ... Depressions--1929--Pennsylvania--Philadelphia 1 Hotels--Pennsylvania--Philadelphia 1 Industrial promotion 1 Insurance companies--United States 1 Jews, American 1 Mortgage banks--United States 1 Motion picture theaters--Pennsylvania--Philadelphia--1920-1940 1 Pennsylvania--Economic conditions--19th century 1 Pennsylvania--Politics and government 1 Philadelphia (Pa.)--City planning 1 Philadelphia (Pa.)--Commerce--History--19th century 1 Political conventions--Pennsylvania--Philadelphia 1 Presidents election 1 Radio stations--United States 1 Railroad equipment industry--United States 1 Real estate business--Pennsylvania 1 Real estate business--Records and correspondence 1 Savings and loan associations--Pennsylvania--Philadelphia 1 Shipping--Pennsylvania--Philadelphia 1 Stores, retail--Pennsylvania--Philadelphia 1 Trade Regulations--19th century 1 Trade and professional associations--Philadelphia (Pa.)--19th century 1 Trade and professional associations--Philadelphia (Pa.)--20th century 1 Trade--Pennsylvania--19th century 1 Transportation--Pennsylvania 1 Universities and colleges--Pennsylvania 1 Urban renewal--Pennsylvania--Philadelphia 1 less ...